/**
 *  Copyright (C) 2008-2013  Telosys project org. ( http://www.telosys.org/ )
 *
 *  Licensed under the GNU LESSER GENERAL PUBLIC LICENSE, Version 3.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *          http://www.gnu.org/licenses/lgpl.html
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.telosys.persistence;

public class PersistenceFunctions {

	public final static String ASC  = " ASC" ;

	public final static String DESC = " DESC" ;
	
	
	public final static String orderBy(String ... attributes ) 
	{
		if ( null == attributes ) {
			return "" ;
		}
		if ( attributes.length == 0 ) {
			return "" ;
		}

		StringBuffer sb = new StringBuffer();
		sb.append("order by ");
		
		int i = 1 ;
		for ( String s : attributes ) {
			if ( i > 1 ) {
				sb.append(", ");
			}
			sb.append(s);
			i++;
		}
		
		return sb.toString();
	}
}
